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/*
* Copyright (c) 2015 Intel corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @file Software interrupts utility code - ARM implementation
*/
#include <kernel.h>
#include <irq_offload.h>
volatile irq_offload_routine_t offload_routine;
static void *offload_param;
/* Called by __svc */
void z_irq_do_offload(void)
{
offload_routine(offload_param);
}
void irq_offload(irq_offload_routine_t routine, void *parameter)
{
#if defined(CONFIG_ARMV6_M_ARMV8_M_BASELINE) && defined(CONFIG_ASSERT)
/* ARMv6-M/ARMv8-M Baseline HardFault if you make a SVC call with
* interrupts locked.
*/
unsigned int key;
__asm__ volatile("mrs %0, PRIMASK;" : "=r" (key) : : "memory");
__ASSERT(key == 0U, "irq_offload called with interrupts locked\n");
#endif /* CONFIG_ARMV6_M_ARMV8_M_BASELINE && CONFIG_ASSERT */
k_sched_lock();
offload_routine = routine;
offload_param = parameter;
__asm__ volatile ("svc %[id]"
:
: [id] "i" (_SVC_CALL_IRQ_OFFLOAD)
: "memory");
offload_routine = NULL;
k_sched_unlock();
}
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